If I remember correctly, I get the errors since I updated python's "setuptools" to work on certbot (development tools), similar to what is demonstrated at https://community.letsencrypt.org/t/cant-install- certbot-on-debian-jessy-unmet-dependencies/19417.
Pip now shows these packages and versions: pip list adium-theme-ubuntu (0.3.4) alabaster (0.7.7) attrs (15.2.0) Babel (1.3) beautifulsoup4 (4.4.1) blinker (1.3) ccsm (0.9.12.2) chardet (2.3.0) command-not-found (0.3) compizconfig-python (0.9.12.2) ConfigArgParse (0.11.0) configobj (5.0.6) cryptography (1.2.3) debtags (2.0) defer (1.0.6) dirspec (13.10) dnspython (1.12.0) docutils (0.12) duplicity (0.7.6) enum34 (1.1.2) html5lib (0.999) httplib2 (0.9.1) idna (2.0) ipaddr (2.1.11) ipaddress (1.0.16) Jinja2 (2.8) keyring (7.3) launchpadlib (1.10.3) lazr.restfulclient (0.13.4) lazr.uri (1.0.3) libvirt-python (1.3.1) lockfile (0.12.2) lxml (3.5.0) MarkupSafe (0.23) ndg-httpsclient (0.4.0) netifaces (0.10.4) numpy (1.11.0) oauth (1.0.1) oauthlib (1.0.3) oneconf (0.3.9) PAM (0.4.2) parsedatetime (2.1) pexpect (4.0.1) Pillow (3.1.2) pip (9.0.1) piston-mini-client (0.7.5) ptyprocess (0.5) pyasn1 (0.1.9) pyasn1-modules (0.0.7) pycrypto (2.6.1) pycups (1.9.73) pycurl (7.43.0) Pygments (2.1) pygobject (3.20.0) PyJWT (1.3.0) pyOpenSSL (0.15.1) pyRFC3339 (1.0) pyserial (3.0.1) pysmbc (1.0.15.5) python-apt (1.1.0b1) python-debian (0.1.27) pytz (2014.10) pyxdg (0.25) reportlab (3.3.0) requests (2.9.1) roman (2.0.0) SecretStorage (2.1.3) service-identity (16.0.0) setuptools (18.1) setuptools-git (1.1) setuptools-scm (1.10.1) simplejson (3.8.1) six (1.10.0) software-center-aptd-plugins (0.0.0) Sphinx (1.3.6) sphinx-rtd-theme (0.1.9) Twisted (16.0.0) unity-lens-photos (1.0) urllib3 (1.13.1) wadllib (1.3.2) youtube-dl (2016.2.22) zope.component (4.3.0) zope.event (4.2.0) zope.interface (4.1.3) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1660508 Title: ubuntu-sso-login's dependency missing: no module named zope.interface To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ubuntu-sso-client/+bug/1660508/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs